Insights into the influence of particle density and column inclination in polydisperse liquid–solid fluidized beds

Abstract

In this work, the impact of particle density difference on the expansion behavior of combined size and density varying binary mixtures in an inclined fluidized bed is examined using a transient multi-fluid Eulerian technique coupled with the Kinetic Theory of Granular Flow (KTGF) model. Additionally, the effects of particle density differences in binary mixtures with varied geometrical parameters, such as angle of inclination, width of the channel, and number of plates in the inclined section are also studied and elaborated. The results delineate that change in the angle of an inclined liquid–solid fluidized bed, the width of the channels, and the number of channels considerably influence the flow behavior of the complex polydisperse mixtures.